Instruments

MN190/1000 Flatfield Astrograph (JHO)

Main photographic instrument of JHO is a 7.5“ f/5.3 Maksutov Newtonian telescope with motorized 2“ Focusser. Clear aperture = 7.5“ (190mm) Primary focal length = 40“ (1000mm) Primary focal ratio: f/5.26 Secondary foci are 100“ (2.5m), 120“ (3.0m) and 200“ (5.0m) with telecentric extenders.

N203/1000 Astrograph (PCO)

Main photographic instrument of PCO is a 8“ f/5 coma corrected Newtonian telescope with manual 2“ Focusser. Clear aperture = 8.0“ (203mm) Primary focal length = 40“ (1000mm) Primary focal ratio: f/4.92

ASI 294MC Pro deep sky imaging camera

Main cooled camera modules of PCO and JHO are ASI294 MC Pro systems: Sensor technology: CMOS, back side illuminated Image Sensor: Sony 4/3 CMOS IMX294CJK (backside illuminated) Sensor size: 19.1mm x 13.0mm Sensor resolution: 4144pixel x 2822pixel, 4.63µm pixel size Peak quantum efficiency: >75% Readout noise: 1.2 electrons Full well capacity: 63k electrons Dark current: 0.0064 electrons / second @ -15°C Cooling system: 2 stage regulated TEC, max delta T = 45K below ambient